Short version: Me too.
Details:
Same problem here. T4 has amounts in Box 14, Box 24, Box 26, and Box 18, but no others, i.e. the employer states that I have CPP pensionable earnings, but they did not deduct employee CPP contributions.
Note that the earnings in question are very small (less than $250) ... but regardless, UFile is not letting me file, as others here have reported.
I'm also uneasy about entering $0.01 in Box 16 ... might such a weird amount raise a flag with CRA?